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First report of bovine neosporosis in dairy cattle in Costa Rica

NEOSPOROSIS has recently been recognised as a major cause of abortion in dairy cattle worldwide (Barr and others 1990, Duff and Otter 1994, Boulton and others 1995). The disease is caused by the protozoan parasite, Neospora caninum, which is closely related to Toxoplasma gondii (Dubey and Lindsa...

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Autores Principales: Pérez, E., González, O., Dolz, Gaby, Morales, Juan Alberto, Barr, B., Conrad, P. A.
Formato: Artículo
Idioma: Inglés
Publicado: British Veterinary Association 2022
Materias:
ENFERMEDADES PARASITARIAS
DAIRY CATTLE
GANADO BOVINO
COSTA RICA
PARASITIC DISEASES
PARASITES
PARÁSITOS
Acceso en línea: http://hdl.handle.net/11056/23003
https://doi.org/10.1136/vr.142.19.520
id RepoUNACR23003
recordtype dspace
spelling RepoUNACR230032022-05-07T00:35:05Z First report of bovine neosporosis in dairy cattle in Costa Rica Pérez, E. González, O. Dolz, Gaby Morales, Juan Alberto Barr, B. Conrad, P. A. ENFERMEDADES PARASITARIAS DAIRY CATTLE GANADO BOVINO COSTA RICA PARASITIC DISEASES PARASITES PARÁSITOS NEOSPOROSIS has recently been recognised as a major cause of abortion in dairy cattle worldwide (Barr and others 1990, Duff and Otter 1994, Boulton and others 1995). The disease is caused by the protozoan parasite, Neospora caninum, which is closely related to Toxoplasma gondii (Dubey and Lindsay 1993).Consequently, it may have a life cycle similar to T gondii, which is transmitted by ingestion of oocysts in the faeces of a definitive host or by oral or nasal exposure to tachyzoites or oral exposure to bradyzoites (Thurmond and others 1997). For N caninum, however, vertical transmission is the major mode of transmission (Anderson and others 1997). In Costa Rica, a retrospective study (1987 to 1993) on 23 dairy farms located in a tropical cloud forest ecosystem (Holdrige 1987) found an overall abortion rate of 7-6 per cent (515 abortions out of 6741 animals calving). Consequently, a prospective study on the same herds was planqed to determine the principal aetiological agents associated with abortion. La NEOSPOROSIS ha sido reconocida recientemente como una de las principales causas de aborto en el ganado lechero en todo el mundo (Barr y otros 1990, Duff y Otter 1994, Boulton y otros 1995). La enfermedad está causada por el parásito protozoario Neospora caninum, que está estrechamente Por consiguiente, puede tener un ciclo de vida similar al de T. gondii, que se transmite por la ingestión de ovocitos. que se transmite por ingestión de ooquistes en las heces de un hospedador definitivo o por exposición oral o nasal. Por consiguiente, puede tener un ciclo de vida similar al de T. gondii, que se transmite por ingestión de ooquistes en las heces de un huésped definitivo o por exposición oral o nasal a taquizoítos o por exposición oral a bradizoítos (Thurmond y otros, 1997). Sin embargo, para N caninum la transmisión vertical es el principal modo de transmisión (Anderson y otros 1997). En Costa Rica, un estudio retrospectivo (1987 a 1993) en 23 granjas lecheras en un ecosistema de bosque tropical nuboso (Holdrige 1987) encontró una tasa global de abortos del 7 al 6% (515 abortos de 6741 animales paridos). En consecuencia, se planificó un estudio prospectivo sobre los mismos rebaños para en los mismos rebaños para determinar los principales agentes etiológicos agentes etiológicos asociados al aborto. Universidad Nacional, Costa Rica Escuela de Medicina Veterinaria 2022-05-07T00:33:48Z 2022-05-07T00:33:48Z 1998-05-09 http://purl.org/coar/resource_type/c_6501 http://hdl.handle.net/11056/23003 https://doi.org/10.1136/vr.142.19.520 eng Acceso abierto Atribución-NoComercial-CompartirIgual 4.0 Internacional http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf British Veterinary Association Veterinary Record Vol. 142, no.19 : 520-521, 1998
institution Universidad Nacional de Costa Rica
collection Repositorio UNA-Costa Rica
language Inglés
topic ENFERMEDADES PARASITARIAS
DAIRY CATTLE
GANADO BOVINO
COSTA RICA
PARASITIC DISEASES
PARASITES
PARÁSITOS
spellingShingle ENFERMEDADES PARASITARIAS
DAIRY CATTLE
GANADO BOVINO
COSTA RICA
PARASITIC DISEASES
PARASITES
PARÁSITOS
Pérez, E.
González, O.
Dolz, Gaby
Morales, Juan Alberto
Barr, B.
Conrad, P. A.
First report of bovine neosporosis in dairy cattle in Costa Rica
description NEOSPOROSIS has recently been recognised as a major cause of abortion in dairy cattle worldwide (Barr and others 1990, Duff and Otter 1994, Boulton and others 1995). The disease is caused by the protozoan parasite, Neospora caninum, which is closely related to Toxoplasma gondii (Dubey and Lindsay 1993).Consequently, it may have a life cycle similar to T gondii, which is transmitted by ingestion of oocysts in the faeces of a definitive host or by oral or nasal exposure to tachyzoites or oral exposure to bradyzoites (Thurmond and others 1997). For N caninum, however, vertical transmission is the major mode of transmission (Anderson and others 1997). In Costa Rica, a retrospective study (1987 to 1993) on 23 dairy farms located in a tropical cloud forest ecosystem (Holdrige 1987) found an overall abortion rate of 7-6 per cent (515 abortions out of 6741 animals calving). Consequently, a prospective study on the same herds was planqed to determine the principal aetiological agents associated with abortion.
format Artículo
author Pérez, E.
González, O.
Dolz, Gaby
Morales, Juan Alberto
Barr, B.
Conrad, P. A.
author_sort Pérez, E.
title First report of bovine neosporosis in dairy cattle in Costa Rica
title_short First report of bovine neosporosis in dairy cattle in Costa Rica
title_full First report of bovine neosporosis in dairy cattle in Costa Rica
title_fullStr First report of bovine neosporosis in dairy cattle in Costa Rica
title_full_unstemmed First report of bovine neosporosis in dairy cattle in Costa Rica
title_sort first report of bovine neosporosis in dairy cattle in costa rica
publisher British Veterinary Association
publishDate 2022
url http://hdl.handle.net/11056/23003
https://doi.org/10.1136/vr.142.19.520
_version_ 1796096181550448640
score 12.232074

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